Tacking-tool



(N0 Model.)

ILC. LAMBERT.-

TACKING TOOL.

No.'4142,'762. Patented Oct. 15, 1889.

` i UNITEDV STATES PATENT Qrricn.

RICHARD C. LAMBERT, OF NORTH MIDDLEBOROUGH, MASSACHUSETTS.

TACKlNG-TOOL.

SPECIFICATION forming part of Letters Patent No. 412,762, dated October15, 1889.

Applicationled May 31,1889. Serial No. 312,748. (No model.)

To all whom. it may concern.-

Be it known that I, RICHARD C. LAMBERT, of North Middleborough, countyof Plymouth, State of Massachusetts, have invented an Improvement inTacking-Tools, of which the following description, in connection withthe accompanying drawings, is a specification, like letters on thedrawings representing like parts.

This invention has for its object the production of a tacking tool orapparatus to be operated by hand or otherwise for driving, one afteranother, headed tacks or nails taken from a raceway supplied from ahopper forming 'part of the tool or apparatus.

The improved tacking tool or apparatus herein shown includes a hopper, araceway, a conductor between the hopper and raceway, a receiver outsidethe raceway, a case or sleeve having a driveway or throat to receive ltacks from the raceway, a driver-bar, a

driver, and a separator actuated by the driver-bar, and having twoblades located in substantially the same verticalplane, one of the saidblades entering between the endmost tack of the raceway and the one nextto it when the driver is acting on the head of and driving a tack anduntil the endof the driver in its ascent rises to the level of the topof the raceway, the said blade keeping the tack next to be drivenpressed against the side of the driver next the blade, so that the saidtack, cut o from the row of tacks, immediately drops into thedriverpassage as soon as the lower end of the driver in its ascentpasses above the head of the said tack. Justas the tack referred toenters the driverpassage under the rising driver the detainingblade withits point comes in Contact with a part of the endmost tack in theraceway and prevents it leaving the raceway, but as soon as the driverin its next descent meets the head of the tack to be driven, the twoblades move in the same direction far enough to re move thedetaining-blade from the tack at the end ofthe raceway and to bring thespace between the separating and detaining blades opposite the saidtack, when it passes through the said space and is stopped by contactwith the side of the driver, and then in their further movement in thesame direction the separating-blade enters fully between the tackresting against the driver and the next tack back of it in the raceway.

Figure 1, in side elevation partially broken out, represents a tackingtool or apparatus embodying my invention. Fig. 2 is a vertical sectionof the tool or apparatus shown in Fig. 1, along the line at, looking tothe left, the case or sleeve and the hopper above the separator being invertical section. Fig-3 is a section of the raceway, the receiver, andparts connected therewith in the line m2, Fig. 1, looking to the left.Fig. 4 is a section in line m4, Fig. 1. Fig. 5 is a partial section inthe line fc3; Fig. 6, a top or plan view of the hopper; and Fig. 7,aview ot" the apparatus, looking at it in the direction of the arrow,Fig. 2, chieiiy to show the relative positions of the blade to theraceway and the driver-passage and driver.

Referring to the drawings, a represents a substantially tubular case orshell, which, as herein shown, serves as a hand-piece, it having at itslower end a nose a', provided with a throat d2, down through whichpasses the tack or nail taken from the end of the raceway b, connectedwith the said case as the tack is to'be driven. The case a, has securedto it a spring d3, one end of which acts upon a yielding stop a, (shownby dotted lines, Fig. 1,) extended partially across the opening in thethroat, the said stop arresting the tack when it drops into the throatand supporting it until after the head of 'the tack is struck by thedriver c in its descent to drive a tack.

The driver c is connected to the lower end of a driver-bar c', extendedup through the case or sleeve, where it is shown as provided with a headc3, to be struck by a hammer or otherwise. The driver-bar has a slot, asc4, through which is extended a pin, as c5, which is held in a nut c,screwed upon or otherwise secured to the upper end of the sleeve a. Thedriver-bar has a shoulder, as c7, which is acted upon by the spring es,surrounding the drivern bar, the lower end of the said spring rest-ingupon a shoulder c, farther down in the sleeve, (see Fig. 2,) the saidspringnormally acting t-o keep the driver-bar and driver in theirelevated position, as shown in the said figure. The sleeve a has ashoulder 4, upon which rests the bottom of the box or hopper d, (hereinshown as substantiallyrectangular IOO in shape,) the said box or hopper,a plan of which is shown in Fig. 6, having a central opening, as 8,which surrounds the sleeve a, the top of the box being acted upon by thenut c6. The box has a suitable cover or door, as d', which when sprungaside permits tacks to be placed in bulk in the box. This box haspreferably an inclined bottom piece, as d2, and at that end of the boxwhere the bottom is most inclined the box has attached to it a conductorcl3, made in the form of a tube, which is extended down to and isconnected with the raceway b at-its outer end. This raeeway hasconnected with it a receiver, as e, it being shown as a sort of tubularjacket to receive any loose tacks which might fall out of the raceway.The end of the raceway next the conductor is covered by a hood c', .theshape of which is best shown in Fig. 3, it having curved inner walls todirect the tacks into the slotof the raeeway. The points of those tackswhich fall correctly into the slot 10 (see Fig. 3) of the raeeway restupon the upper portion ot the raceway and pass down the raceway underthe cover-plate 12 to the end thereof; but those tacks which do notenter with their' bodies the slot of the raceway fall off the racewayafter passing the cover e', and enter the receiver, from which theymaybe removed in any usual manner and be poured back into the hopper.The sleeve a supports a stud f, which constitutes the fulcrum for theseparator f', the latter consisting, essentially, of a slotted platehaving long and short blades, to be described. The slot 13 in theseparator receives in it a pin 11i, extended from a collar or projectionsecured to the driver-bar and extended outwardly therefrom through aslot 1G. The slot 17 in the separator is of arc shape and receives in ita stud-screw 18, which constitutes a guide for the separator in itsmovements about the stud f. The separator has two blades 2O and 2l, theone 20 being designated the separator-blade and the one 21 thedetaining-blade. They are each connected with the separator by suitablescrews or rivets 22, and are shown as curved at bottom and top,the twoends of the blades being somewhat separated from each other, and beingin substantially the same vertical plane, the space between the bladesserving as a passage-way to permit the endmost tack of the row of tacksin the raceway to drop oft one after another and pass through the saidslot, as described. The blades of the separatorf are located a shortdistance at one side from the throat or driver passage, the distancebeing sufficient to leave a space between the separator-blade 2O and theside of the driver just large enough to receive the tack next to bedriven, the distance referred to depending upon the diameter of t-hebody and head of t-he tack or nail.

Herein it will be noticed that the case or sleeve a,in which thedriver-bar reciproeates, is extended through the hopper d, near itscenter, so as to leave narrow channels or passage-ways 121 between thesaid sleeve and the interior of the hopper, through which the tacks ornails may pass, the said passageways preventing the tacks or nails beingfed through too rapidly into the raceway.

It is obvious that the receiver might be omitted should it not bedesired to save the tacks which fail to correctly enter the raceway.

I do not desire to limit my invention to the exact form of spring usedto aetuate the driver.

The separator herein described might be employed in connection with adriver and raceway in a power-actuated nailing-machine, and yet operatesubstantially as described herein.

I claimda 1. In a tacking apparatus, the hopper to receive tacks ornails, a raceway, a conductor between the hopper and raceway, and thecase or shell and driver-bar, and driver, combined with the separatorhaving separating and detaining blades 20 21, located in substantiallythe same plane, and operating substantially as described.

2. The raceway, the case or sleeve having the driver passage or throat,and the driver and driver-bar, combined with the separator havingseparating and detaining blades 2O 21, located in substantially the sameplane, and having a space between their ends for the passage of a tackor nail from the end ot the raceway into position against the side ofthe driver, the separating-blade keeping the tack against the side ofthe driver while the latter is completing the driving of a tack or nailand is being partially elevated, substantially as described.

3. The raceway, the case or shell in communication therewith, thedriver, and the driver-bar having a projection and stud, combined with aseparator having a slot, as 13, and two blades 2O and 21, to operatesubstantially as described.

4. The case or shell, the driver-bar, and driver therein, combined withthe hopper, through which the said case or shell is extended, a raceway,and a conductor connecting said hopper and raceway, to opera-tesubstantially as described.

5. In a tacking apparatus, the raceway, the case or shell, thedriver-bar, and driver therein,combined with the hopper and conductor,the raceway being provided with the cover having a concave or curvedinterior surface, and located immediately above the slot in the raceway,to operate substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

RICHARD C. LAMBERT.

Vitnesses:

GEO. W. GREGORY, B. DEWAR.

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